4
10 April: outbreak of ILI in Veracruz April May June July August October September March Cronologia da pandemia A (H1N1)

5
4 April: outbreak of ILI in Veracruz May June July August October September March 21 April: 2 cases of H1N1 reported in California, USA 23 April: H1N1 confirmed in several patients in MX April Source: MMWR, 58(15) Cronologia da pandemia A (H1N1)

7
4 April: outbreak of ILI in Veracruz 27 April: WHO phase 4 May June July August October September March 21 April: 2 cases of H1N1 confirmed in California, USA April Cronologia da pandemia A (H1N1)

8
4 April: outbreak of ILI in Veracruz 29 April: WHO phase 5 27 April: WHO phase 4 May June July August October September March 21 April: 2 cases of H1N1 confirmed in California, USA April Cronologia da pandemia A (H1N1)

9
4 April: outbreak of ILI in Veracruz 29 April: WHO phase 5 April H1N1 in 48 countries 27 April: WHO phase 4 June July August October September March May May: H1N1 introduction in SH 21 April: 2 cases of H1N1 confirmed in California, USA Cronologia da pandemia A (H1N1)

10
4 April: outbreak of ILI in Veracruz 29 April: WHO phase 5 April 27 April: WHO phase 4 11 June: WHO phase 6 pandemic declared; H1N1 in 74 countries May June July August October September March 21 April: 2 cases of H1N1 confirmed in California, USA Cronologia da pandemia A (H1N1)

11
4 April: outbreak of ILI in Veracruz April 11 June: WHO phase 6 pandemic declared; H1N1 in 74 countries May July August October September March 1st US H1N1 peak June 21 April: 2 cases of H1N1 confirmed in California, USA Source: CDC FLUVIEW, http://www.cdc.gov/flu/weekly/ Cronologia da pandemia A (H1N1)

13
4 April: outbreak of ILI in Veracruz 29 April: WHO phase 5 April May October September March August July Active Transmission of H1N1 in Tropical Asia and Tropical Americas 21 April: 2 cases of H1N1 confirmed in California, USA June Cronologia da pandemia A (H1N1)

15
4 April: outbreak of ILI in Veracruz April 11 June: WHO phase 6 pandemic declared; H1N1 in 74 countries May June July October September March 2nd H1N1 season begins in the US August 21 April: 2 cases of H1N1 confirmed in California, USA 2 nd H1N1 season starts in Japan Source: CDC FLUVIEW, http://www.cdc.gov/flu/weekly/ Cronologia da pandemia A (H1N1)